A Therm-a-Rest Compressible camp pillow, Small size is 7oz, Medium is 9oz. Small one is great in a hammock. Medium is a little better on a pad, especially when side-sleeping. A "real" pillow greatly improves my sleep, if the head and neck are comfortable I'm halfway there.

MSR Guardian Water Pump.
Knowing that me and my team's gut are void of virus-level nasties is worth the weight. Especially useful with larger groups, but I started taking it to the CA Sierra with 2-people outings as well. Always have someone give me grief about a 1 lb filter, until their gravity filter stops the show or one of them gets sick. Just worth it to me.

I go ultralight and hammock camp so weight is a consideration except for two items and one of them reduces in weight ( gets a lot lighter ) during the trip. 1st is my pair of camouflaged Crocks as camp shoes and even as hiking shoes at times. 2nd. a Gatorade 12 oz bottle emptied of the Gatorade and filled with a good Sour Mash Bourbon. Somehow it's weight decreases ( it's one of life's mystery's ) as the days past till the only weigh is the empty gatorade bottle at the trail head on the last day.

My luxury items I refuse to give up: 1.) Nemo Fillo. I need a pillow at night. I sleep in my puffy usually. This one is worth it at 3 ounces. 2.) Sea to Summit XMug. I'm a coffee addict. 1/3rd of my food bag is instant coffee. Watching the sun rise with a cup of hot coffee is why I go backpacking. 3.) Foam flip flops/Injini socks: My pair weigh 5.9 ounces and I NEED to dry my feet at the end of the day. Its not open for debate. Lol

Helinox Cot Lite. Not for the ultralight crowd at ~2.5 lbs, but for anyone who wants to sleep like they're in a bed, this is awesome. If you're not going far, it's really not too much to ask to carry it along.

Booze. Always booze. Pyramid Rum for me. And also I’m in the “camp” that carries a chair. I have the Alite but will be switching to the slightly lighter REI at some point. In order to make carrying a chair worth it, weight wise, I have seriously cut down on other items and upgraded things like switching to an EE quilt, carrying less clothing, and using a Shires Tarptent. Also switched my bag to a Gossamer. That all said, I don’t carry my chair when I’m required to carry an actual bear cannister. Even though I much prefer to sit on a chair, I can’t stand carrying both since the can is so heavy (for my week long trips).

What i carry depends on the trip... but likely candidate items include...wine, fishing tackle, a book, a small axe.
For some reason i really enjoy red wine when camping and have some boxed go tos that often join me. Fishing tackle is great for entertainment as well as fresh food sources. I know I can probably do better with an e-Reader on my phone but I love the tactile feeling of a paper book (plus phone gets shutdown in trips for a dann good reason). And having a two and a half pound 20in X really allows me to get a better fire and seeing as I do most of my camping during winter time I really like having a fire that goes as long as I'm at that site.

On backpacking trips I always take a Crazy Creek Hex 2.0 chair and a pillow. I just bought a Sea to Summit Aeros pillow that is only 2.8 ounces and seems very comfortable. The crazy Creek chair is a little heavy at 21 ounces but it is great to sit in and lean back after a long day.